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Subsequent Events (Details)	1 Months Ended		3 Months Ended	12 Months Ended
	Apr. 30, 2024 USD ($) Option	Mar. 31, 2021 USD ($) item	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2021 USD ($)
Subsequent events
Total debt obligations			$ 4,190,155,000	$ 4,096,155,000
Secured Debt
Subsequent events
Total debt obligations			1,498,113,000	1,498,113,000
Unsecured Debt
Subsequent events
Total debt obligations			2,692,042,000	2,598,042,000
2021 Unsecured Revolver maturing in 2026 | Unsecured Debt
Subsequent events
Maximum borrowing capacity		$ 1,000,000,000.0			$ 1,350,000,000
Total debt obligations			$ 911,000,000	$ 1,117,000,000
Debt extension term		12 months
Number of extension options available | item		2
2021 Unsecured Revolver maturing in 2026 | SOFR | Unsecured Debt
Subsequent events
Basis point spread on variable interest rate (percent)		0.90%	0.90%	0.90%
Subsequent Events | 2024 Unsecured Revolver maturing in 2029 | Unsecured Debt
Subsequent events
Maximum borrowing capacity	$ 2,000,000,000.0
Total debt obligations	$ 916,000,000
Debt extension term	6 months
Number of extension options available | Option	2
Subsequent Events | 2024 Unsecured Revolver maturing in 2029 | SOFR | Unsecured Debt
Subsequent events
Basis point spread on variable interest rate (percent)	0.85%
Subsequent Events | 2021 Unsecured Revolver maturing in 2026 | Unsecured Debt
Subsequent events
Repayment of outstanding balance at termination	$ 916,000,000

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